%I #6 Aug 20 2020 11:42:12
%S 1,3,7,45,664,17491,1127238,135428462,34057380439,17040140705965
%N Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Diagonal of A301330.
%e Some solutions for n=5
%e ..0..0..1..1..1. .0..0..1..1..1. .0..0..0..0..0. .0..0..1..1..1
%e ..0..1..0..1..0. .0..1..0..1..1. .0..1..0..1..0. .0..1..0..0..1
%e ..0..1..1..0..0. .0..1..1..1..0. .1..1..1..1..0. .0..1..0..1..1
%e ..0..0..0..1..1. .0..0..0..0..0. .1..1..1..0..0. .0..1..1..0..0
%e ..1..0..1..1..0. .0..1..0..0..1. .0..1..1..0..1. .0..0..0..0..1
%Y Cf. A301330.
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 18 2018